Water gauge



Patented May 31, 1927.

UNITED STATES MICHAEL PEKIGI-I, 0F PITTSBURGH, PENNSYLVANIA.

WATER GAUGE.

Application filed November 28, 1923. Serial No. 677,400.

My invention relates to improvements in gauges used on boilers and water columns to indicate the water level in such constructions; the object of the present invention is the production of a gauge of this character which can be manufactured cheaply, and which will withstand the maximum pressure that may be carried in such devices. The constrution of the gauge being such that it can be adjustably positioned, so that the condition in the boiler indicated thereby, can be readily seen. It is also constructed in such a manner that narrow pieces of heavy plate glass ordinarily a waste product can be used, thus avoiding the cost of the manufacture of the usual tubular type ot gauge. I accomplish the object of this invention by means of the device hereinafter more specifically described, reference being had to the drawings forming a part hereof, in which:

Fig. 1 is a front elevation of my improved gauge, showing its attachment to the boiler.

Fig 2 is a section on line II--II of Fig. 1.-

Fig. 3 is a front elevation of a modified form of my improved gauge.

Fig, 4 is a side elevation of the same.

Fig. 5 is a perspective view of the frame or casing of the gauge.

Fig. 6 is an enlarged sectional view, taken on the line VI-VI of Fig. 1.

Fig. 7 is an enlarged sectional view, taken on the line VII-VII of Fig. 1.

Referring to said drawings: 1, 2 are pipes or conduits inserted in a boiler X, which is shown in conventional forni at points defining respectively,` the low and high water levels therein. 3 and 4 are valves located in said pipes respectively for the purpose of permitting water to circulate from the lower water level to the upper water level in the boiler through the indicating gauge. The said gauge comprises the metallic plates a, t, in each of which a vertically disposed slot o is formed which extends substantially the entire length thereof; and the case having portions d e which constitute the front and rear edges of the gauge, the inner side of each of which terminates at opposite edges of the slot c, permitting a continuous opening which is adapted to be closed by the heavy plates f, g, of glass, the edges of which are seated in the recesses la, a', formed in said plates d, e, the glass plates thus spaced apart form a space or compartment j, substantially the length of the gauge.

The casing formed by the members cil-e is provided with flanges 14 whereby it is secured to the plate 5 by means of bolts 15. At its ends this casing member is provided with passage ways 16 and 17 communicating with the space j. The conduit 16 extends into a plug p and communicates with the conduit 2 while the passage 17 communicates through passage 7c with the conduit 1. The passage of water through the gauge is controlled by valves 3 and 4.

In Fig. 3, I show a modified form of the device in which the conduit 2 is provided with an ordinary valve 6 instead of.

the type of valve shown in Figs, 1 and 2. In other respects the structure shown in Figs. 3 and 4 is similar to the construction shown in Figs. 1 and 2, and comprises the boiler 7, conduits 8 and 9, inserted in said boiler at respectively the lower and upper water levels therein, valve 10 controlling the passage of water from the lower wat-er level in the boiler' to and through the gauge 11, and through the pipe 12 into the boiler at the high water level. A valve 6 of any ordinary construction is located in said last mentioned pipe, for the purpose of controlling, if necessary, the water therethrough.

Having described my invention what I claim and desire to secure by Letters Patent is:

A water guage comprising a case having laterally spaced edge portions, end walls uniting said portions and formed integrally therewith, a glass plate, means for securing lthe plate to one side of said edge portions to bridge the space between said end walls and the edge portions, means bridging the edge portions and end walls at the opposite side, and laterally extending oppositely disposed flange portions formed integrally with one end of said gauge, the said flange portions serving as a` means for attaching the gauge -to a pipe flange, and said end walls being perforated to provide a conduit through the gauge.

In testimony whereof, I have hereunto signed my name.

MICHAEL Pinnen. 

